dorsal/arxiv
View SchemaSubthreshold $K^+$ Production on Nuclei by $\pi^+$ Mesons
| Authors | S. V. Efremov, E. Ya. Paryev |
|---|---|
| Categories | |
| ArXiv ID | nucl-th/9507001 |
| URL | https://arxiv.org/abs/nucl-th/9507001 |
| Journal | Phys.Atom.Nucl.59:2063-2073,1996; Few Body Syst.Suppl.9:285-292,1995 |
Abstract
The inclusive $K^+$ mesons production in $\pi^+$--nucleus reactions in the subthreshold energy regime is analyzed with respect to the one--step ($\pi^+n\to K^+\Lambda$) and the two--step ($\pi^+n\to \eta p_1,~ \eta p_2\to K^+\Lambda$) incoherent production processes on the basis of an appropriate folding model, which allows one to take into account the various forms of an internal nucleon momentum distribution as well as on-- and off--shell propagation of the struck target nucleon. Contrary to proton--nucleus reactions primary reaction channel is found to be significant practically at all considered energies. Detailed predictions for the $K^+$ total and invariant differential cross sections from \piC-- and \piPb--collisions at subthreshold energies are provided.
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"abstract": "The inclusive $K^+$ mesons production in $\\pi^+$--nucleus reactions in the\nsubthreshold energy regime is analyzed with respect to the one--step\n($\\pi^+n\\to K^+\\Lambda$) and the two--step ($\\pi^+n\\to \\eta p_1,~ \\eta p_2\\to\nK^+\\Lambda$) incoherent production processes on the basis of an appropriate\nfolding model, which allows one to take into account the various forms of an\ninternal nucleon momentum distribution as well as on-- and off--shell\npropagation of the struck target nucleon. Contrary to proton--nucleus reactions\nprimary reaction channel is found to be significant practically at all\nconsidered energies. Detailed predictions for the $K^+$ total and invariant\ndifferential cross sections from \\piC-- and \\piPb--collisions at subthreshold\nenergies are provided.",
"arxiv_id": "nucl-th/9507001",
"authors": [
"S. V. Efremov",
"E. Ya. Paryev"
],
"categories": [
"nucl-th"
],
"journal_ref": "Phys.Atom.Nucl.59:2063-2073,1996; Few Body\n Syst.Suppl.9:285-292,1995",
"title": "Subthreshold $K^+$ Production on Nuclei by $\\pi^+$ Mesons",
"url": "https://arxiv.org/abs/nucl-th/9507001"
},
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